INDEX OF INVENTIONS For which Letters Patent of the FEBRUARY x6 1897 AND EACH BEARING THAT DATE. Barn Door Hangers HOLYOKE MASS. THE COBURN PATENT TROLLEY TRACKPOVVER&FOs LATHES.' I ROCK DRILLS SIMPLEST MOST EFFICIENT and DURABLE. (RAND DRILL CO.) five stamp battery and at STEAM BARNES' UPRIGHT DRILLS W. F. & JOHN BARNES CO. 1999 Ruby Street ROCKFORD ILL. ORDINARY RATES. Inside Page each insertion 75 cents a line Foot power Screw. .cutting Automatic Cross feed Star Lathes Drop Forging Plants for BICYCLE work. The Billings & Spencer Co. = 00000 The NATIONAL PIPE
INDEX OF INVENTIONS For which Letters Patent of the FEBRUARY x6 1897 AND EACH BEARING THAT DATE. Barn Door Hangers HOLYOKE MASS. THE COBURN PATENT TROLLEY TRACKPOVVER&FOs LATHES.' I ROCK DRILLS SIMPLEST MOST EFFICIENT and DURABLE. (RAND DRILL CO.) five stamp battery and at STEAM BARNES' UPRIGHT DRILLS W. F. & JOHN BARNES CO. 1999 Ruby Street ROCKFORD ILL. ORDINARY RATES. Inside Page each insertion 75 cents a line Foot power Screw. .cutting Automatic Cross feed Star Lathes Drop Forging Plants for BICYCLE work. The Billings & Spencer Co. = 00000 The NATIONAL PIPE BENDING CO. 152 River St. New Haven Conn. Stark Bench Lathe NICKEL Eleetro-Plating RATING. ‘‘‘ ORK 225 NI14 UNION ATR GN ICA 0 IL , scientific american, 1897-03-06
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